/Engine/Source/Editor/ContentBrowserData/Public/ContentBrowserVirtualPathTree.h
Recursively gathers all child paths from the specified base path relative to this node
bool GetSubPaths ( [FName](API\Runtime\Core\UObject\FName) BasePath, [TSet](API\Runtime\Core\Containers\TSet)< [FName](API\Runtime\Core\UObject\FName) > & OutPaths, bool bRecurse ) const